Results 271 to 280 of about 117,118 (314)

Membrane skeleton of innervated and denervated fast- and slow-twitch muscle

Muscle & Nerve, 2000
We used confocal microscopy and immunoblotting to study membrane skeletal proteins of fast-twitch (extensor digitorum longus) and slow-twitch (soleus) muscles of the adult rat. In the extensor digitorum longus (EDL), beta-spectrin concentrates in costameres, whereas dystrophin is enriched at costameres but is also present in intercostameric regions. In
M W, Williams, W G, Resneck, R J, Bloch
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Arginine promotes skeletal muscle fiber type transformation from fast-twitch to slow-twitch via Sirt1/AMPK pathway.

Journal of Nutritional Biochemistry, 2018
This study investigated the effect of arginine on skeletal muscle fiber type transformation in mice and in C2C12 myotubes. Our data showed that dietary supplementation of arginine in mice significantly up-regulated the slow myosin heavy chain (MyHC ...
Xiaoling Chen, Yafei Guo, G. Jia, Guangmang Liu, Hua Zhao, Zhiqing Huang   +5 more
semanticscholar   +1 more source

Characterization of Mg2+-ATPase from slow-twitch muscle membranes

International Journal of Biochemistry, 1987
SR vesicles from rabbit slow-twitch muscle reveal high activity (0.7-0.9 mumol/mg X min) of "basic" or Mg2+-ATPase. This enzyme differs in its biochemical properties from the well characterized Ca2+ pump ATPase. It is active in millimolar concentration of magnesium or calcium. The activity is inhibited by various detergents except for digitonin.
W, Szyja, A, Wrzosek, B, Korczak, M G, Sarzała   +3 more
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Attractin deficiency causes metabolic and morphological abnormalities in slow-twitch muscle

Cell and Tissue Research, 2021
Skeletal muscle fibers are classified as slow-twitch and fast-twitch fibers, which have different reactive oxygen species (ROS) metabolism and mitochondrial biogenesis. Recently, Attractin (Atrn), which encodes secreted (sAtrn) and transmembrane (mAtrn)-type proteins, has been shown to be involved in free radical scavenging.
Ayuka Ehara, Daisuke Taguchi, Kazuhiko Nakadate, Shuichi Ueda   +3 more
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Calcium sensitivity of fast‐and slow‐twitch human muscle fibers

Muscle & Nerve, 1989
AbstractMuscle fibers from the lateral gastrocnemius muscles of five normal adult males were chemically skinned (sarcolemma disrupted) and each fiber was divided into two parts for histochemical determination of fiber type and calcium‐induced tension measurements. The calcium concentration associated with half‐maximal tension was 2.5 μM for fast‐twitch
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Muscle Sound Frequency Analysis From Fast And Slow Twitch Muscle

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, 2005
Muscle sounds were recorded from human orbicularis oris and soleus muscles from 5 healthy subjects during isometric contraction. Frequency analysis of the signals revealed distinct power spectra for each muscle type. The peak frequency for soleus was 10.8 +/- 3.1 and for orbicularis oris was 22 +/- 5 Hz.
D. Mealing, P.W. McCarthy
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Involvement of fast and slow twitch muscle fibres in avian muscular dystrophy

Journal of the Neurological Sciences, 1983
The extent of differential fibre type involvement in chicken muscular dystrophy can be assessed quantitatively by the statistical parameters of fibre area, nuclei content and nuclei distribution in the individual fibre types. Two muscles, the posterior latissimus dorsi (PLD) and the serratus metapatagialis (SMP), were found to have similar overall ...
J A, Pizzey, E A, Barnard, P J, Barnard
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Characterisation of isoprenaline myotoxicity on slow-twitch skeletal versus cardiac muscle

International Journal of Cardiology, 2002
Elevated catecholamines are known to be cardiotoxic, but their potential injurious effects on skeletal muscles are largely unknown. We have investigated whether isoprenaline induces in vivo myocyte necrosis in rat soleus muscle, and characterised the time-course, dose-response, spatial distribution and adrenoceptor involvement of its myotoxicity, in ...
YeeLan, Ng, David F, Goldspink, Jatin G, Burniston, William A, Clark, John, Colyer, Lip Bun, Tan   +5 more
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Myogenic and neurogenic contributions to the development of fast and slow twitch muscles in rat

Developmental Biology, 1978
Abstract The histochemical ATPase activity and the myosin light chains of a rat fast muscle (extensor digitorum longus, EDL) and a rat slow muscle (soleus) during development have been investigated. Both muscles initially synthesize fast myosin light chains and show the intense histochemical ATPase activity characteristic of adult fast muscle fibers.
N A, Rubinstein, A M, Kelly
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Energetics of mammalian fast and slow twitch muscles.

Federation proceedings, 1982
Myothermic determinations of the energetics of rat fast twitch extensor digitorum longus (EDL) and slow twitch soleus (SOL) reveal that at birth the total energy production is similar but by 41 days postpartum, the total energy production of the EDL is much greater, The higher energy liberation of EDL also exists in the mature mouse. The differences in
openaire   +1 more source